Fuse-setting device.



W. SCHWARTZ.

FUSE SETTING DEVICE.

APPLIOATION FILED JUNE 22, 1912.

Patent ed Nov. 25, 1913.

8 SHEETS-SHEET 1.

Patented Nov. .25, 1913.

3 SHEETSSHI2;P 2.

W. SCHWARTZ.

FUSE SETTING DEVICE.

APPLICATION FILED JUNE22,1912.

W. SCHWARTZ. v FUSE SETTING DEVICE.

APPLIOATION FILED JUNE22,1912.

3 snnnrs snm a.

f ll

Patented Nov. 2&1913.

e run STATES PATENT onmo.

WILI-I EIJM SGHWAR'I-Z, OF ESSEN-ONTHE-BUHR, enmuantnssrcnon 'I'O FRIED. KRUPP AKTIE'NGESELLSGHAIFT, OF ESSEN ON-THE-BUHB, GERMANY.

FUSE-SETTING DEVICE.

To all whom it may concern following is a specification.

'Specificationof Letters Patent.

invented a certain new and useful Improvement in Fuse-Setting Devices, of which the;

This invention relates to fuse setting de vices for fuses that have two separate set-= ting parts, each independent of the other.

The object of this invention is to provide a fuse setting device for fuses of this kind charge, impact firing with or without de' layed action, which setting device is as conveniently operated as a setting device for fuses having only one lndependently ad;

justable part.

Two embodiments of the present inven-; tion are illustrated in the drawings, showing in Figure 1 a front view of the first embodiment of this invention representing a fuse setting key together with the parts of. the projectile necessary for explaining the} invention; Fig. 2 a section along line 22} of Fig. 1, seen from the left; Fig. 3 a sec-1 tion along line 33 of Fig. 2, seen from above; and Fig. 4 a section along line t-tj of Fig. 2, also seen from above; Fig. 5 a: longitudinal axial section of the second em-i bodiment representing a fuse setting maf chine; Fig. 6 a section along line 66 of Fig. 5, seen from above; Fig. 7 an end View; of the machine partly in section, seen in the direction of arrow as in Fig. 5; and Fig. 8 a section alongline 88 of Fig. 5,1

seen from above.

piece a which can be turned independently.

of the time ring a and serves for the purpose of setting the desired kind of firing;

The revoluble head piece a has three marks;

a, a, a, see Fig.4, to which corresponds a mark (i on the ringer? rigidly connected with the fuse body; When the revoluble;

1 time ring a has been set fora certain detonating point, the projectile will operate as shrapnel if the mark a of the revoluble head piece a registers with themark a and as hollow shell withbursting charge, if the mark a registers with .the mark a Should again the revoluble timeringc be set for impact, the projectile will operate as hollow shell without delayed action, if

5 either of the two marks a and a registers with the mark a and if the mark a registers with the mark a as shell with de-' layed action,

The fuse setting key illustrated in Figs. 1 to t will now be described.

Three adjustable coaxial members C, 1) and E are'revolubly mounted in the housing of the setting key, comprising two rings 13 and B which are secured together. The setting member C is intended for engaging the fuse plate a the setting member D for engaging the time ring a andthe setting member E for engaging the head piece a of the fuse A. Two spring actuated latches (Z and e for the notches in the time piece a and the head piece a are provided for coupling said fuse pieces respectively with the setting members D and E; while a rigid toe 0 is arranged on the setting member C for couhead 5 of the stud b is actuated by a spring 6 which tends to push the stud outward, and, by hand pressure on the head, the stud may be pushed in against the spring 6 far enough into the housing B that the toe b will lie entirely within the room inclosed by the flange 0 whereby the setting member C will be set free.

Around the cylindrical portion of the setting member D are cut worm gear teeth 6Z2, meshing with a self-locking worm F having a thumb wheel 7, which worm is revolubly mounted in the upper housing ring B. The function of the worm gear F (Z is to bring the setting member D into the angular po- 7 Patented Nov. 2 5, 1913. Application filed June 22, 1912-. Serial No. 705,255.

, sition corresponding to the desired distance of detonation. A scale d visible through a window 5 in the housing ring B, and a mark 6 on the edge of the window 6 serve for reading the range to which the fuse is to be set. The setting member E is rigidly connected with a cap E, which reaches out beyond the housing B B and isprovided with a T-handle e and a flange e gripping over an inner flange b of the upper housing ring B.

In the inner flange b are drilled three holes 6 which may engage with a spring actuated latch pin 6 having a head 6 which pin is mounted on the flange 6, whereby the setting member E may be coupled with the housing B B in three distinct angular positions. An index 6 on the flange e and three marks 11 5 and I) on the upper housing ring B are intended for indicating these angular positions. tance between the marks 6 Z3 and Z2 corresponds to the angular distance between the marks a a and a on the fuse head piece a These three angular positions, wherein the setting member E may be adjusted relative to the housing B B do therefore eX- press the different kinds of firing in which the fuse may be set. Lastly the toe 0 and two latches (Z and e are so located, that they have the same relative positions as the corresponding notches in the fuse, when the setting member G is locked by the coupling stud b to the housing B B and the fuse has the same adjustment as the setting key in accordance with the drawing.

In describing the use and manner of operation of this fuse setting key, it will be supposed that the different parts of the setting key, to commence with, have the positions indicated in the drawing, wherein the setting member E, as an instance, is coupled with the housing B B in the angular position indicated by the mark 5 which corresponds to the shrapnel firing. Were it now desired to adjust the setting key for shell firing with bursting charge, the coupling between the setting member E and the housing B B is then first detached by drawing out the latch pin 6 before the key is placed on the fuse; and the cap E with the thereto rigidly connected setting member E is thereupon turned by using the head e of the latch pin 6 as handle, until the index 6 registers. with the mark 5 corresponding to the desired kind of firing. If now the latch pin is released, it will automatically enter the corresponding hole 69, so that the setting-member E will be locked to the housing B B in the angular position that corresponds to the desired kind of firing, and as a consequence also locked to the setting member C, which is intended for coupling with the fuse plate a Hereupon the setting member D, which is intended for en The angular disgagement with the revoluble time ring (1 has to be brought into an angular position relative to the setting member C, that corresponds to the desired distance of detonation. For this purpose the thumb-wheel f has to be turned until the mark 6 registers with the division line on the scale (P, that corresponds to the desired distance of detonation, and this turning of the thumb-wheel is communicated by means of worm gear F d to the setting member D. The adjustment of the-setting key to the desired kind of firing (shell firing with bursting charge) as well as to the distance of detonation desired for this kind of firing, has now been accomplished.

The setting for any other kind of firing is done in a similar manner and need therefore no further explanation.

Now, in order to set the fuse, the setting key is placed on the fuse, as Fig. 2 shows, so that the toe 0 of the setting member 0 will engage the notch in the fuse plate a and the setting member C as a consequence is coupled to the fuse body. Usually, no engagement will then take place between the latches (l and c and the corresponding notches in the fuse, but these latches will instead, as a rule, be pushed back in their apertures in the setting members D and E. After placing the setting key on the fuse and loosening the coupling between the setting member C and the housing B B by pressing on the head b of the coupling stud 6 the key is turned by the handle 0 once 360. As now the setting member E, being rigidly connected with the T-handle 6 is coupled to the housing B B by means of the latch pin 6 and the housing itself is coupled to the setting member D by means of the worm gear F (P, all the here mentioned parts therefore turn together. During the turning the two latches (Z and e are sliding on the outer surface of their respective fuse parts a and a until they snap into the notches of. these fuse parts, thereby connecting said fuse parts with the respective setting members so that by continued turning of the fuse setting key, also the fuse part in question will be set. As soon as the fuse setting key has been turned 860, the toe Z2 of the coupling stud 6 which, after the release of the head 6 was sliding on the inner surface of the annular flange 0 during the turning, now snaps into the cut 0 thereby preventing any further turning. The setting members of the fuse setting key are then again situated in the same relative position as they had before the commencement of the turning.

As thetwo latches d and e in each case, during the described fuse setting operation, must arrive in engagement with the respective notches of the fuse parts a and a these fuse parts will, under every circumstance, at

the end of the setting operation, be in .en-

the fuse plate a or with the thereto rigidly connected fuse part (H, which has been given to the settingmembers D and E, as regards the set-tlng member C.

As soon as the fuse has been set, the fuse setting key is taken away; the latches d 6 and the toe 0 will then be disengaged ina well known manner, from the corresponding notches. V The second embodiment of the invention, illustrated in Figs. 5 to 8 representing the fuse setting machine, is also provided with three annular setting members, whereof, the first one G is intended for coupling with, the fuse part a, the second one H for cou-:

pling with the revoluble time ring a and the third one J for'coupling with the revo luble head piece a of the fuse. The spring actuated latches 9 il and 2' engaging with corresponding notches in the fuse parts,

are provided for coupling the setting mem-.

bers with the corresponding fuse parts, which members are coaxially mounted to revolve in the housing K. The set-ting member G is provided with a toothed circle 9 the setting member H with a toothed circle h and the setting member J with a toothed circle The toothed circles 9 k and 2' are each in mesh with one of three bevel wheels M, N and P which are revoluble around a common axis in the housing K, and all of these bevel wheels have the same pitch cone. The inner bevel wheel M is in mesh with the toothed circle If, the middle one N with the toothed circle 9 and the outer one P with the toothed circle 2' The engagement of the toothed circle takes place at the upper part of the bevel wheel N, but the engagement of the toothed circles 7L and 2' on the other hand, takes placeat the lower part of the bevel wheels M and P, respectively. The ratio of the gearing of all three bevel gears (M 72, N and P 11 is equal to l. The, inner bevel wheel M is rigidly connected with the crank M which constitutes the ac tuating member for seting the fuse. The

crank L? is provided with a projectionm? (see Fig. 6) which, in well known manner, has a cone-shaped notch m for a similarly shaped spring actuated plunger 72 mounted in the recess 10 in the housing K; which plunger is adapted to yieldingly hold the crank in the position shown in Fig. '7. An abutment k on the housing K, is provided for the latch k of the setting member H connected with the crank l 1 through the bevel gear M 7L2, which abutment, for. the purpose given in U. S. PatentNo. 944466 isarranged in such a: manner, that the latch in cooperation with an arm 72 will automatically arrive in the inoperative position hub n of the bevel wheel N.

represented in Fig. ,6, when the crank M has. attained the mentioned angular position. The middle bevel wheel N is rigidly connected with a worm wheel N mounted V on its hub n which worm wheel is inclosed by the box-shaped nave m of the crank M.

A self-locking worm Q is in mesh'with the worm wheel N mounted on the crank nave m and this worth has an actuating crank (1 and is intended to give the desired angular position for responding to the desired distance of detonation to the setting member G as re ards thesettin member H b means of'the bevel gearing N 9 For the purpose, of reading the distance of detonation, a mainscale a is provided on a cone shaped drum R, which is rigidly connected with a worm wheel'R running idle on the The worm wheel R which, similarly to the worm wheel N is inclosed inthe box-shaped crank nave m and possesses the same pitch diameter as the worm wheel N is in mesh with a 'worm T mounted on the crank nave m*,

which worm has the same pitch as the worm 1Q, being connected to the latter by means of a set of spur gears 25 9 having the gearing ratio of 1. As will be evident from this description, the worm Q; and the drum R will, therefore, always be in gearing connection, said worm Q serving for adjusting the desired distance of detonation, and the drum R carrying the corresponding main scale T The reading mark M1 belonging to o the scale r is placed on a revoluble ring U on the drum R, which ring is adjustable as regards the crank nave m for the purpose of making corrections. To adjust the ring U, there is provided a worm V revolubly but not slidably mounted in the crank nave m*, which worm meshes with teeth u- (see Fig. 5) on the ring U. The worm V is seated on a spindle V which spindle can be axially displaced, compare particularly Fig. 8, and this spindle carries at one end, the crank '0 and at its other end a spur wheel 0 which is intended to engage with another spur wheel 9 located on the shaft of the worm Q. In accordance with Patent No. 944, 56,

the device has been so arranged the worm ment relative to the worm V and the crank nave m whereby the spur wheel 12 is brought into engagement with the spur wheel 9 and that only after the completion of engagement, the turning of the spur wheel, together with the worm V, can take I place. The spindle V being provided-with a preferably square portion engaging in a similarly shaped aperture in one of the sides of the crank nave m is thus held in locked position by a helical spring around the spindle. From the above, it will be evident that a gearing connection exists between the worm V and the setting member G, when the spur wheels '0 and g are in engagement, on the one hand, by means of the gearings o 9 Q N and N 9 so that the setting member G may be adjusted an amount corresponding to the desired correction, by turning the worm V; and on the other hand by means of the gearings M2 V, V 9 g t T R a gearing connection existsbetween the ring U and the drum R.

The ratio for the last mentioned gearing connection has been so selected, that the ring U will turn the same angle and in the same direction as the drum R, by turning the worm V, so that theposition of the mark M as regards the. main scale T will not be changed. For reading the correction depending on the rotation of the ring U, a mark a on said ring and a scale m ar ranged opposite the same on the crank nave m is provided.

The cone-shaped drum R incloses for the greater part a similarly cone-shaped drum P rigidly connected to the hub of the bevel wheel P. At the outer edge, this drum P has an annular flange 79 which incloses the flange 1 of the drum B. On this flange is arranged a spring actuated coupling pin p with a head 29, which is adapted to engage with any one-of three drilled holes r in the flange 1, compare particularly Fig. 7, so that the drum P may be engaged in three separate angular positions with the drum R. To indicate these angular positions, a mark a Fig. 7, is suppliedton the drum R, and three marks 29*, p and 79 are provided on the annular flange 29 The angular distance of the marks ga 79 and p express the angular distance of the marks a a and a of the fuse part (L The three angular positions, wherein the drum P as regards the drum R may be adjusted, will then express the different kinds of firings in which the fuse may be set, the drum P being always in gearing connection with the setting member J, which is intended for engagement with the fuse part a by means of the bevel gearing P 2' Lastly, the arrangement of the latches 9 h and i has been so arranged that they will have the same relative angular distance as the corresponding notches in the fuse, when the crank M is held by the plunger in the angular position presented in Fig. 7 and when furthermore, the marks n and a register with the zero point of the corresponding scales r and m and the fuse has the same setting as the fuse setting machine.

In describing the use and manner of operation of this fuse setting machine, it will be supposed that different parts of the fuse setting machine to commence with, have the positions indicated in the drawing, wherein the drum P for instance, is coupled with the drum R in the angular position indicated by the mark 19 which corresponds to the shrapnel firing. lVere it now desired to adjust the setting machine for shell firing with bursting charge, before introducing the shot into the setting machine, the coupling between the drums P and R is first detached by drawing off the coupling pin p and thereupon the drum P is turned, using the head 29* of the coupling pin 79 as a handle, until the mark 79 registers with the mark r of the drum R, corresponding to the desired kind of firing. Through this turning the setting member J, by means of the bevel gearing P i receives the angular position corresponding to the desired kind of firing as regards the setting member G, which has remained stationary during the described operation. If now, the coupling pin 79 is released, it will automatically enter the corresponding hole r in the flange r so that the drum P is now coupled to the drum R.

The setting member G is now to be brought into the angular position as regards the setting member H, corresponding-to the desired distance of detonation. For this 95 purpose, the handle 9 is turned, and the turning thereof is transmitted to the setting member G by means of the worm gearing Q N and the bevel gearing N 9 The drum R will simultaneously be turned by means. of the spur gearing g t and the worm gearing T R The turning of the handle is continued until the division mark of the main scale 1", corresponding to the desired distance of detonation, registers with the mark 16 The setting member G has then received the angular position corresponding to the desired distance of detonation relative to the setting member H, in case no correction is necessary. The bevel wheel P and the drum P coupled to the drum B through the coupling pin 79 will, therefore, be turned simultaneously with the drum R, and as will be evident from the above, the turning of the bevel wheel P 115 will also take place with the same angular velocity as that of the bevel wheel N, but in the opposite direction. In consequence of this, the setting members G and J will turn in the same direction, and, similarly 120 to the bevel gearing N P, always the same angle, because the engagement of the toothed circle 9 takes place at the upper half of the bevel wheel N, and the engagement of the toothed circle 2' takes place at 125 the lower half of the bevel wheel P. The adjustment already given to the setting member J relative to the setting member G, corresponding to the desired kind of firing, will not be changed unless necessary, 130

Largest.

through the. adjustment of the setting mem berGito the desired distance of detonation.

Should a correction be necessary, that would be accomplished by. turningthe crank on the one hand (by means of the train of gears N N g andonthe otherhand' (by means of the train of gears 9 t T, R R 79 P, P 71 to the setting member J. Even in this case, the setting members G and J will turn in the same direction and the same angle, so that. the angular position corresponding-to the kind of firing already given to the setting member J, relative to the setting member G, will not be lost through the, turning. of the setting'member G for the purpose ofcorrection. The turning of the spindle V is furthermore transmitted by. means of the worm gearing V u to the ring U, and thelatter will turn, as has already been mentioned, inthe same direction and same angle as the drum B, so that the adjustment of the mark a relative to the main scale r will not be altered through the correcting adjustment. The turning of thecrank o will be continued until the mark a of the ring U registers with the division mark of the scale m corresponding to the desired correction.

The adjustment of the fuse setting machine for the desired kind of firing (hollow shell firing with bursting charge) and the desired distance of detonation for this kind of firing has here-with been accomplished. The adjustment for any other kind of firing is accomplished in a similar manner and need not here be further explained. Now, in order to set the fuse, the projectile is first placed in the fuse setting machine, see Fig. 5, without regard having to be taken to, in what position. the notches on the fuse will be as regards the latches 9 h and 2 The crank M is thereupon turned clockwise a complete revolution (see Fig. 7) after theiclutch W, m m has been disengaged by means of a powerful pressure on the crank handle. All of the bevel wheels will, therefore, partake of a turning of the crank M because the bevel wheel M is rigidly connected to the crank l and because furthermore, the'bevel wheel N is locked to the crank nave m through the self-locking worm gearing l 2 Q; and because the bevel. wheel P is coupled to the drum B through the coupling pin p and also because the drum R is coupled to the crank nave m through the self-locking worm gearing R T. The turning of the bevel wheels M, N and P is in such a manner transmitted to the setting members G,

Hand J, that the setting members H and J each make a complete revolution in one direction, relative to the housing K, and the setting member G in the opposite direction. (The angular position of the setting meme ber G as regards each of the setting mem bers H and J will, therefore, be changed jtwice 860.) During this operation, all the latches 9 k and 2' will arrive inengagement with the notches of the corresponding fuse parts (6 a and a whereby the fuse parts will be coupled with the corresponding setting members.

At the end of the turning of the crank,

the clutch m m will automatically set the crank in its original position, as illustrated in Fig. 7; The abutment 70* will simultaneously bring the latch [L in a well known manner, out of'engagement with the corresponding notch of the revoluble time ring a All of the setting members of the fuse setting-machine will nowtake up the previously given relative positions, and as a consequence, the corresponding fuse parts must, during the described setting operation, have been given the corresponding settings. At the end of the setting operation, the projectile is taken away from the fuse setting machine; the latches g 72, and i will then automatically be disengaged, in the usual manne'r, from the notches of the corresponding fuse parts.

I claim 1. A setting device for fuses with two setting parts independent of each other, comprising three setting members, the first setting member being constructed to engage the body of the fuse; the second setting member constructedto engage the one, and the third setting member the other, of the independent setting parts of the fuse; each of said setting members adapted to engage the respective fuse parts only at a certain angular position relative to each other; the angular. positions, of said second and third setting members relative to the first setting member being adapted to be changed at least once 360 during the setting operasaid setting members adapted to engage the respective fuse parts only at a certain angular position relative to each other; the angular positions of said second and third setting members relative to the first setting member being adapted to be changed at leastonce 360 during the setting operation of the fuse, counted from that angular position of said three setting members when all three are in engagement with their respective fuse parts.

3. A setting device for fuses, with two setting parts independent of each other, comprising three setting members, the first setting member being constructed to engage the body of the fuse; the second setting member constructed to engage the one and the third setting member the other of the independent setting parts of the fuse; a housing for the setting members and an automatic clutch between said housing and said first setting member; said second and third setting members being angularly adjustable relative to said housing, an amount corresponding to the desired setting of said two setting parts of the fuse; said clutch being released by hand when the fuse is inserted into the fuse setting device,and automatiily brought into action at the moment the desired angular position relative to the fuse body has been attained.

4:. A setting, device for fuses with two setting parts independent of each other, comprising three setting members, the first setting member. being constructed to engage the body of the fuse; the second setting member constructed to engage the one and the third setting member the other of the independent setting parts of the fuse; a housing wherein said setting members are revolubly mounted and an automatic clutch between said housing and said first setting member, said first setting member being adapted to engage the fuse body at a certain angular position relative to the fuse; said second and third setting members being angularly adjustable within said housing corresponding to the desired setting; and said automatic clutch, coupling together said housing and said first setting member at a certain predetermined angular position of said first setting member relative to the housing.

5. A setting device for fuses with two setting parts independent of each other, comprising a housing; three independently revoluble setting members mounted in the housing; the first of said setting members having a notch, a spring actuated plunger in said housing, tending to engage said notch and adapted to be releasedby hand; a toe on said first setting member adapted to engage a recess in the fuse body; a spring actuated plunger in the second of said setting members adapted to engage a notch in the first of the independent setting parts of the fuse; a hand operated worm mounted to rotate in said housing and worm teeth meshing therewith on said second setting member; a spring actuated plunger in the third of said setting members adapted to engage a notch in the second of the independent set ting parts of the fuse; a spring actuated plunger in said third setting member and said housing having a plurality of apertures, said last named plunger adapted to automatically engage any one of said apertures, whereby said housing and said third setting member will be locked together, and said plunger being constructed to be Withdrawn by hand; a handle on said third setting member for actuating the fuse setting device for setting the fuse.

6. A setting device for fuses with two setting parts independent of each other, comprising three setting members, the first setting member being constructed to engage the body of the fuse; the second setting member constructed to engage the one, and the third setting member the other, of the independent setting parts of the fuse; each of said setting members adapt-ad to engage the respective fuse parts only at a certain angular position relative to each other; the angular position of said first setting member relative to said second and third setting members being adapted to be changed, dur ing the fuse setting operation, twice 360, after said two last named setting members have been angularly adjusted for the desired setting relative to the first setting member.

7 A setting device for fuses with two setting parts independent of each other, comprising three setting members, the first setting member being constructed to engage the body of the fuse; the second setting member constructed to engage the one and the third setting member the other of the independent setting parts of the fuse; a housing wherein said setting members are revolubly mounted; a gearing connection between said first setting member and said third setting member, said gearing connection constructed to revolve said first and third setting members the same angle and in the same direction, when said first setting member is being turned to adjust the device for the angular position to be given the first independent setting part of the fuse.

8. A setting device for fuses with one setting part for the distance of detonation and a second setting part independent of the first for the desired kind of firing; comprising one setting member for engaging the fuse body; a second setting member for engaging the first and a third setting member for engaging the second independent setting part of the fuse; a housing wherein said three setting members are revolubly mounted; three bevel wheels, having the same pitch cone, revolubly mounted in said housing; a toothed circle on each of said three setting members, meshing respectively with one of said three bevel wheels; gearing con nection between said three bevel wheels whereby said first setting member is made to turn in opposite direction to that of the second and third setting members during the operation of the device.

9. setting device for fuses with one setting part for the distance of detonation and a second setting part independent of the first for the desired kind of firing; comprising one setting 'member for engaging the fuse body; a second setting member for engaging the first and a third setting member for engaging the second independent setting part of the fuse; a housing wherein said three setting members are revolubly mounted; three bevel wheels, having the same pitch cone, revolubly mounted in said housing; a toothed circle on each of said three setting members; the inner bevel wheel being in mesh with the teeth of said second setting member; an operating handle rigidly connected with said smallest bevel wheel; the middle bevel wheel being in mesh with the teeth of said first setting member; a spring actuated and hand set clutch for lockingsaid middle bevel wheel at any angle relative to said operating handle; the outer bevel wheel being in mesh with the teeth of said third setting member; an actuating member and a clutch for locking said outer bevel wheel in a plurality of angular positions to said actuating member; said outer bevel wheel turning the same angle but in the opposite direction as saidmiddle bevel wheel, during the turning of said middle bevel wheel.

10. A setting device for. fuses with one setting part for the distance of detonation and a second setting part independent of the first for the desired kind of firing; com. prising one setting member for engaging the fuse body; a second setting member for engaging the first and a third setting member for engaging the second independent setting part of the fuse; a housing wherein said three setting members are revolubly mounted; three bevel wheels, having the same pitch cone, revolubly mounted in said housing; a toothed circle on each of said three setting members; the inner bevel wheel being in mesh' with the teeth of said second setting member; an operating handle rigidly connected with said smallest bevel wheel; the middle bevel wheel being in mesh with the teeth of said first setting member; a spring actuated and hand set clutch for locking said middle bevel wheel at any angle relative to said operating handle; the outer bevel wheel being in mesh with the teeth of saidthird setting member; an actuating member anda clutch for locking said outer bevel wheel in a plurality of angular positions to said actuating member; a worm revolubly mounted in said operat ing handle, a worm wheel in mesh with said worm rigidly connected with middle bevel wheel; mounted in said operating handle, a second worm wheel in mesh with said worm rig idly connected with said actuating member; gearing connection between said two worms, whereby said second worm wheel is compelled to turn the same angle but inopposite direction as the first worm wheel by operating the first worm.

11. A setting device for fuses with one setting part for the distance of detonation and a second setting part independent of the first for the desired kind of firing; comprising one setting member for engaging the fuse body; a second setting member for engaging the first and a third setting member for engaging the second independent setting part of the fuse; a housing wherein said three setting members are revolubly mounted; three bevel wheels, having the same pitch cone, revolubly mounted in said housing; a toothed circle on each of said three setting members; the inner bevel 'wheel being in mesh with the teeth of said second setting member; an operating handle' rigidly connected with said smallest bevel Wheel; the middle bevel wheel being in mesh with the teeth of said first setting member; a spring actuated and hand set clutch for locking said middle bevel wheel at any angle relative to said operating handle; the outer bevel wheel being in mesh with the teeth of said third setting member; an actuated member and aclutch for locking said outer bevel wheel in a plurality of angular positions to said actuating member; a worm revolubly mounted in said operating handle, a worm wheel in mesh with said worm rigidly connected with middle bevel wheel; a second worm revolubly mounted in said operating handle, a second worm wheel in mesh withsaid worm rigidly connected with said actuating member; gearing connection between said two worms, whereby said second worm wheel is compelled to turn the same angle but in opposite direction as the first worm wheel by operating the first worm; a third worm revolubly mounted in said operating handle; a manually operated, axially displaceable spindle for said third worm; avernierring revolubly mounted on said operating handle; a toothed circle on said .vernier ring in mesh with said third worm; gearing between said spindle and said first worm; said gearing being temporarily connected for-turning said Vernier-ring when axially displacing said spindle only, said spindle being normally locked against turning.

'70 a second worm revolubly 12. A setting device for fuses with two setting parts independent of each other, comprising three coaxial setting members, the first setting member being constructed to engage the body of the fuse; the second setting member constructed to engage the one, and the third setting member the other of the independent setting parts of the fuse; and means for establishing an angular position of said second and third setting member relative to the first setting member corresponding to the desired setting of said two setting parts of the fuse.

13. A setting device for fuses with two setting parts independent of each other, com prising two coaxial setting members constructed to engage said independent fuse parts respectively; a housing for said setting members; and an automatic clutch for coupling said housing to the body of the fuse; said setting members being angularly adjustable relatively to said housing an amount corresponding to the desired setting of said two setting parts of the fuse and said clutch being released by hand when the fuse is inserted into the fuse setting device and automatically brought into action at the moment the desired angular position relative to the fuse body has been attained.

14. A setting device for fuses with two setting parts independent of each other, comprising three coaxial setting members, the first setting member being constructed to engage the body of the fuse; the second setting member constructed to engage the one, and the third setting member the other, of the independent setting parts of the fuse; means for establishing an angular position of said second and third setting member relative to the first setting member corresponding to the desired setting of said two setting parts of the fuse; an operating member for adjusting the fuse and means actuated by said operating member for altering said angular position twice 360.

15. A setting device for fuses with two setting parts independent of each other, comprising a housing, a setting member revolubly mounted in said housing and constructed to engage the body of the fuse, a second setting member coaxial with said first setting member and constructed to engage one of said independent setting parts of the fuse, means for locking said second setting member relatively to the housing in a predetermined angular position, a third setting member coaxial with said first and second setting member and constructed to engage the other of said independent setting parts of the fuse, means for adjusting said third setting member relatively to said first setting member an amount corresponding to the desired setting of the fuse part engaged by said third setting member, means for adjusting said first setting member relatively to said second setting member an amount corresponding to the desired setting of said first-named independent fuse part; means establishing connection between said first and third setting member to revolve said third setting member the same angle and in the same direction as said first setting member when being adjusted for the angular position to be given said first-named independent fuse part, an operating member for adjusting the fuse and means actuated by said operating member for altering the angular position assumed by said second and third setting member relatively to said first setting member twice 360.

16. A setting device for fuses with one setting part for the distance of detonation and a second setting part independent of the first for the desired kind of firing; comprising a housing, a setting member revolubly mounted in said housing and constructed to engage the body of the fuse, a second setting member coaxial with said first setting member and constructed to engage said first setting part of the fuse, a third setting member coaxial with said first and second member and constructed to engage said second setting part of the fuse, an operating member rotatably mounted in said housing for adjusting the fuse, releasable means for looking said operating member relatively to the housing in a predetermined angular position, three bevel wheels coaxial with said operating member and having the same pitch cone, the first of said bevel wheels be ing rigidly connected with said operating member, means for adjusting the second bevel wheel relatively to said operating member an amount corresponding to the desired setting of said first setting part of the fuse, a rotatable body coaxial with said bevel wheels, means establishing positive connection between said rotatable body and said second bevel wheel causing said body to turn the same angle but in the opposite direction as said second bevel wheel when being adjusted relative to said operating member, releasable means for locking the third bevel wheel in a plurality of angular positions relatively to said rotatable body, a gearing connection between said first bevel wheel and said second setting member, another gearing connection between said second bevel wheel and said first setting member, and a third gearing connection between said third bevel wheel and said third setting member, said gearing connections causing said second third setting member to be turned the same angle but in opposite direction as said first setting member when said three bevel wheels turn in unison.

17. A setting device for fuses with on setting part for the distance of detonation and a second setting part independent of the first for the desired kind of firing; comprising a housing, a setting member revolubly mounted in said housing and constructed to engage the body of the fuse, a second setting member coaxial with said first setting member and constructed to engage said first setting part of the fuse, a third setting member coaxial withsaid first and second member and constructed to engage said second setting part of the fuse, an operating member rotatably mounted in said housing for adjusting the fuse, releasable means for locking said operating member relatively to the housing in a predetermined angular position, three bevel wheels coaxial with said operating member and having the same pitch cone, the first of said bevel wheels being rigidly connected with said operating member, a worm Wheel rigidly connected with said second bevel wheel, a worm revolubly mounted on said operating member and being in mesh with said worm wheel for adjusting said second bevel an amount corresponding to the desired setting of said first setting part of the fuse, a second worm wheel coaxial with said bevel wheels, a second worm revolubly mounted on said operating member and being in mesh with said second worm wheel, a gearing connection between said two worms, whereby said second worm wheel is compelled to turn the same angle but in opposite direction as the first worm wheel by operating the first worm, releasable means for locking the third bevel wheel in a plurality of angular positions relatively to said second worm wheel, a gearing connection between said first bevel wheel and said second setting member, another gearing connection between said second bevel wheel and said first setting member, and a third gearing connection between said third bevel wheel and said third setting member, said gearing connections causing said second and third setting member to be turned the same angle but in opposite direction as said first setting member when said three bevel wheels turn in unison.

18. A setting device for fuses with one setting part for the distance of detonation and a second setting part independent of the first setting part for the desired kind of firing; comprising a housing, a setting member revolubly mounted in said housing and constructed to engage the body of the fuse, a second setting member coaxial with said first setting member and constructed to engage said first setting part of the fuse, a third setting member coaxial with said first and second member and constructed to engage said second setting part of the fuse, an operating member rotatably mounted in said housing for adjusting the fuse, releasable means for locking said operating member relatively to the housing in a predetermined angular position, three bevel wheels coaxial with said operating member and having the same pitch cone, the first of said bevel wheels being rigidly connected with said operating member, a worm wheel rigidly connected with said second bevel wheel, a worm revolubly mounted on said operating member and being in mesh with said worm wheel for adjusting said second bevel an amount corresponding to the desired setting of said first setting part of the fuse, a second worm wheel coaxial with said bevel wheels, a second worm revolubly mounted on said operating member and being in mesh with said second wheel, a gearing connection between said two worms, whereby said second worm wheel is compelled to turn the same angle but in the opposite direction as the first worm wheel by operating the first worm, releasable means for locking the third bevel wheel in a plurality of angular positions relatively to said second worm wheel, a gearing connection between said first bevel wheel and said second setting member, another gearing connection between said second bevel wheel and said first setting member, a third gearing connection between said third bevel wheel and said third setting member, said gearing connections causing said second and third setting member to be turned the same angle but in opposite direction as said first setting member when said three bevel wheels turn in unison, a third worm revolubly mounted on said operating member, a manually operated, axially displaceable spindle for said third worm, means normally locking said spindle against turning and adapted to be released by axially displacing the spindle, a gearing connect-ion bet-ween said spindle and said first worm, said gearing connection comprising two gearing members normally being out of engagement and adapted to automatically engage each other when said spindle is axially displaced for releasing said locking means, an annular reading off member revolubly mounted on said operating member, and a toothed are on said reading off member in mesh with said third worm, whereby said reading off member is caused to turn the same angle and in the same direction as said second worm wheel when said spindle is turned.

The foregoing specification signed at Barmen, Germany, this 1st day of June, 1912.

WILHELM SCHWARTZ. [1 s.]

In presence of HELEN NUFER, ALBERT NUFFER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G. 

